# BLK_BOX_TC

ESP-IDF version `v5.3.2`

Firmware for the BLK_BOX Top control board for the puzzle `PDE001`.

## Resources

All the files in the `resources/` folder should be loaded onto a micro SD card placed in the BLK_BOX.

Developer Note: You can convert mp3 files to 44100Hz mono signed 16 uncompressed .wav files with the following command:
```ffmpeg -i input.mp3 -ac 1 -ar 44100 -sample_fmt s16 output.wav```

File names must be no longer than `8` characters not including the extention
File extentions must be no longer than `3` characters.

To build images, use the lvgl image converter [`https://lvgl.io/tools/imageconverter`].
Use v8. 
I have had the best luck with `CF_RGB565A8`.
